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Title:
METHOD FOR MOUNTING MAIN ENGINE BEDPLATE AND GEARBOX BEDPLATE AT BLOCK ERECTION STAGE
Document Type and Number:
WIPO Patent Application WO/2019/000753
Kind Code:
A1
Abstract:
A method for mounting a main engine bedplate and a gearbox bedplate at a block erection stage, which is used for mounting the main engine bedplate and the gearbox bedplate on a bottom block, comprising the following steps: fabricating in sections the main engine bedplate and the gearbox bedplate; welding at proper positions assemblies and sub-assemblies of a bottom of an engine room to erect a bottom block; repeatedly measuring horizontal data of a bottom plate in the bottom block; surveying and delimiting placing lines and corresponding datum lines of the main engine bedplate and the gearbox bedplate on the bottom plate in the bottom block; erecting marker posts (B) at rib positions of the bottom plate in the bottom block, close to the main engine bedplate and the gearbox bedplate, respectively, and marking a height of an axis; hoisting and locating the main engine bedplate and the gearbox bedplate; horizontally adjusting the bedplates to determine an underside allowance, and cutting the allowance; hoisting the main engine bedplate and the gearbox bedplate back to the previous position; tack welding and assembling the bedplates, and reporting for an inspection; constructing according to a welding process and monitoring panel data of the main engine bedplate and the gearbox bedplate; and staying lines for inspection and performing local distortion correction by use of flame. The method can solve the problems of long mounting period in a shipyard, harsh field operation environment, and failure to advance the operation of sighting and boring.

Inventors:
XIONG, Fei (1F No. 68, The Pearl River Management AreaWest Road, Nansh, Guangzhou City Guangdong 2, 511462, CN)
TAN, Jiliang (1F No. 68, The Pearl River Management AreaWest Road, Nansh, Guangzhou City Guangdong 2, 511462, CN)
YAO, Jie (1F No. 68, The Pearl River Management AreaWest Road, Nansh, Guangzhou City Guangdong 2, 511462, CN)
LI, Wei (1F No. 68, The Pearl River Management AreaWest Road, Nansh, Guangzhou City Guangdong 2, 511462, CN)
Application Number:
CN2017/108829
Publication Date:
January 03, 2019
Filing Date:
October 31, 2017
Export Citation:
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Assignee:
GUANGZHOU SHIPYARD INTERNATIONAL COMPANY LIMITED (1F No. 68, The Pearl River Management AreaWest Road, Nansh, Guangzhou City Guangdong 2, 511462, CN)
International Classes:
B63B9/00
Domestic Patent References:
WO1994029170A11994-12-22
Foreign References:
CN104875847A2015-09-02
CN102431626A2012-05-02
CN102815370A2012-12-12
CN102501944A2012-06-20
EP0015654A11980-09-17
Other References:
LIU, FEI ET AL.: "A Brief Analysis on Installation Accuracy of Special Ship Shafting", GSI SHIPBUILDING TECHNOLOGY, vol. 6, 30 June 2014 (2014-06-30), pages 32 - 35
WU, ZHEHONG ET AL.: "The Accuracy Control on Block and Hull Erection of Twin Rudder Shafting for Certain Ship", GSI SHIPBUILDING TECHNOLOGY, vol. 3, 30 March 2016 (2016-03-30), pages 25 - 29, 38
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (F6 Xijin Centre, 39 Lianhuachi East Rd. Haidian, Beijing 6, 100036, CN)
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